Materials Data on Ce(Ge2Rh3)2 by Materials Project

Abstract

Ce(Rh3Ge2)2 crystallizes in the hexagonal P-6m2 space group. The structure is three-dimensional. Ce is bonded to six equivalent Rh and six equivalent Ge atoms to form face-sharing CeGe6Rh6 cuboctahedra. All Ce–Rh bond lengths are 3.16 Å. All Ce–Ge bond lengths are 3.15 Å. There are two inequivalent Rh sites. In the first Rh site, Rh is bonded in a 5-coordinate geometry to five Ge atoms. There are one shorter (2.50 Å) and four longer (2.57 Å) Rh–Ge bond lengths. In the second Rh site, Rh is bonded in a 6-coordinate geometry to two equivalent Ce and four Ge atoms. There are two shorter (2.49 Å) and two longer (2.57 Å) Rh–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to nine Rh atoms. In the second Ge site, Ge is bonded in a 8-coordinate geometry to two equivalent Ce and six Rh atoms.